COMPUTER NETWORK DEFENSE Flashcards
1
Q
What is used by Circuit Switched Networks?
A
Fiber Optic
2
Q
What is used by Packet Switched Networks?
A
Ethernet Cable
3
Q
What is a Backbone Router?
A
Moves data without being part of an autonomous system
4
Q
What is an Area Border Router?
A
Attaches network to backbone routers
5
Q
What is ARP?
A
Address Resolution Protocol;
IP address to MAC
6
Q
What is DNS?
A
Domain Name Service;
Name to IP
7
Q
What port is TELNET?
A
23
8
Q
What port is FTP?
A
21; File Transfer Protocol
9
Q
What port is SNMP?
A
161; Simple Network Management Protocol
10
Q
What port is SMTP?
A
25; Simple Mail Transfer Protocol
11
Q
What port is DNS?
A
53; Domain Name Service
12
Q
What port is HTTP?
A
80; Hyper Text Transfer Protocol
13
Q
What port is POP3?
A
110; Post Office Protocol
14
Q
What port is SSH?
A
22; Secure Shell
15
Q
Why is SSH preferred over TELNET?
A
SSH is encrypted
